Flash Player 9 and later, Adobe AIR 1.0 and
event-handling system allows programmers to respond to user input
and system events in a convenient way. The ActionScript 3.0 event
model is not only convenient, but also standards-compliant, and
well integrated with the display list. Based on the Document Object
Model (DOM) Level 3 Events Specification, an industry-standard event-handling
architecture, the new event model provides a powerful yet intuitive
event-handling tool for ActionScript programmers.
The ActionScript 3.0 event-handling system interacts closely
with the display list. To gain a basic understanding of the display
list, read Display programming.